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- {{Short description|Electromagnetic radiation from a charged particle in a medium}} [[File:Advanced Test Reactor.jpg|thumb|right|Cherenkov radiation glowing in the core of the [[Advanced Test Reactor]] at [[Idaho National La ...37 KB (5,333 words) - 19:32, 20 February 2025
- ...ropical.jpg|thumb|right|[[Breaking wave]]s on beaches induce variations in radiation stress, driving longshore currents. The resulting longshore [[sediment tran ...the [[surface gravity wave]]s, which is exerted on the [[mean flow]]. The radiation stresses behave as a second-order [[tensor]]. ...21 KB (3,060 words) - 19:46, 20 June 2024
- ...fields. This article is primarily concerned with electromagnetic multipole radiation, although the treatment of gravitational waves is similar. ...is unknown or complicated. Multipole analysis offers a way to separate the radiation into moments of increasing complexity. Since the electromagnetic field depe ...34 KB (5,422 words) - 01:10, 15 June 2023
- In [[Antenna (radio)|antenna]] theory, '''radiation efficiency''' is a measure of how well a radio antenna converts the radio-f ...Antenna gain|gain]] of an antenna is the [[directivity]] multiplied by the radiation efficiency.<ref name="StutzmanThiele">{{cite book |last1=Stutzman |first1=W ...9 KB (1,395 words) - 02:49, 16 December 2024
- {{Short description|Study of the interactions between radiation and matter}} ...is a subfield of [[materials science]] which studies the interaction of [[radiation]] with [[matter]]: a broad subject covering many forms of [[irradiation]] a ...15 KB (2,150 words) - 22:40, 12 November 2024
- {{Short description|Probability of ill health effects from ionizing radiation}} ...[[International Commission on Radiological Protection]] (ICRP) system of [[radiation protection|radiological protection]].<ref name="ICRP publication, 103 para ...15 KB (2,184 words) - 10:34, 10 February 2025
- ...e force exerted on the obstacle is evaluated by integrating the [[acoustic radiation pressure]] (due to the presence of the sonic wave) over its time-varying su ...39175|title=Estimates of echo correlation and measurement bias in acoustic radiation force impulse imaging | volume=50 | issue=6|date=June 2003|journal= IEEE Tr ...7 KB (1,033 words) - 15:26, 12 June 2024
- [[File:DipoleRadiation.gif|thumb|right|Electric dipole radiation. The dipole lies in the plane of the drawing, points vertically upward and ...and ''magnetic'' multipole radiation. Each of these, being electromagnetic radiation, consists of an electric and a magnetic field. ...5 KB (772 words) - 21:04, 13 February 2025
- ...derived for an accelerating [[magnetic moment]] emitting [[electromagnetic radiation]]. ...ions must be met in order to derive the following formula for the magnetic radiation reaction force. First, the motion of the [[magnetic moment]] must be period ...12 KB (1,849 words) - 02:32, 14 October 2023
- .... in 1896 with an early X-ray tube ([[Crookes tube]]), when the dangers of radiation were largely unknown.<ref>Described by William James Morton (1845–1920) in: ...es can have harmful effects on living organisms. As a result, the study of radiation damage also became a part of this history. ...263 KB (37,147 words) - 20:45, 27 January 2025
- In [[quantum field theory]], '''initial and final state radiation''' refers to certain kinds of radiative emissions that are not due to{{clar [[File:Feynmann Diagram Gluon Radiation.svg|thumb|286px|left|In this Feynman diagram, an [[electron]] and a [[posit ...6 KB (884 words) - 06:09, 21 January 2025
- The '''radiation law''' is way of modeling human mobility ([[geographic mobility]], [[human ==The radiation model<ref name=simini/>== ...7 KB (1,102 words) - 09:09, 24 November 2024
- {{Short description|Cancer causing exposure to ionizing radiation in spaceflight}} ...d to determine how the body reacts to and shields its internal organs from radiation, which will be important for longer duration space flights.]] ...60 KB (8,802 words) - 01:17, 15 September 2024
- The "radiation effect" results from [[Heat transfer#Radiation|radiation heat exchange]] between human bodies and surrounding surfaces, such as wall We can observe and compare the rate of radiation heat transfer between a person and the surrounding surfaces if we first mak ...4 KB (640 words) - 06:44, 4 March 2024
- ...the electron. Hence, measuring the angular correlation of the annihilation radiation yields information about the momentum distribution of the electrons in the In an ACAR measurement the angular deviation of many pairs of annihilation radiation is measured. Therefore, the underlying physical observable is often called ...19 KB (2,870 words) - 21:49, 25 February 2025
- ...t4=Kwang-Mo|last5=Yi|first5=Joo Mi|date=2013-07-18|title=Epigenetics Meets Radiation Biology as a New Approach in Cancer Treatment|journal=International Journal ...n is used on abnormal growths in the human body such as cancer cells, in [[radiation therapy]]. Most cancer cells are fully treated with some type of [[radiothe ...27 KB (3,951 words) - 13:15, 7 October 2024
- ...surface to another is the equal to the difference of incoming and outgoing radiation from the first surface. In general, the heat transfer between surfaces is g ...not depend upon the media. Because media neither absorb, emit, nor scatter radiation. ...6 KB (1,008 words) - 15:47, 4 October 2024
- ...t an accelerated charge should radiate [[electromagnetic waves]], yet such radiation is not observed for stationary particles in gravitational fields. ...Fulton|first1=Thomas|last2=Rohrlich|first2=Fritz|date=1960|title=Classical radiation from a uniformly accelerated charge|journal=Annals of Physics|volume=9|issu ...15 KB (2,369 words) - 22:30, 25 November 2024
Page text matches
- ...st]] [[Rolf Sievert]], is a [[special function]] commonly encountered in [[radiation transport]] calculations. It plays a role in the [[sievert]] (symbol: Sv) unit of [[ionizing radiation]] dose in the International System of Units (SI). ...582 bytes (71 words) - 12:23, 2 November 2021
- ...> it is useful to wonder what the speed of the transmission is. If all the radiation at given location propagates in the same direction, then the radiant flux t where ''c'' is the radiation propagation speed. ...2 KB (341 words) - 13:19, 8 April 2021
- [[File:DipoleRadiation.gif|thumb|right|Electric dipole radiation. The dipole lies in the plane of the drawing, points vertically upward and ...and ''magnetic'' multipole radiation. Each of these, being electromagnetic radiation, consists of an electric and a magnetic field. ...5 KB (772 words) - 21:04, 13 February 2025
- In the field of [[heat transfer]], '''intensity of radiation''' <math>I</math> is a measure of the distribution of radiant heat flux per ...wer of a surface can be determined by integrating the intensity of emitted radiation over a hemisphere surrounding the surface: ...2 KB (343 words) - 23:43, 1 September 2022
- ...les C. Thomas Publ.</ref><ref>Hendee W., Ibbott G. and Hendee E. (2005). ''Radiation Therapy Physics''. Wiley-Liss Publ. {{ISBN|0-471-39493-9}}.</ref> * TAR ''increases'' with increasing beam energy because higher energy radiation is more penetrating ...2 KB (250 words) - 09:15, 14 August 2023
- ...T) is a method of modelling the propagation of polarized [[electromagnetic radiation]] in low density media. In contrast to [[scalar (mathematics)|scalar]] [[r Extinction is caused both by simple [[absorption (electromagnetic radiation)|absorption]] as well as from scattering out of the line-of-sight, <math>\h ...3 KB (444 words) - 05:36, 17 September 2018
- ...ul when modeling evaporation in areas where satellite remote sensing solar radiation data is the only data available.<ref>{{Cite journal|last1=Melesse|first1=As ...s represented as<ref>{{Cite journal|title=Evaluation and generalization of radiation-based methods for calculating evaporation|bibcode=2000HyPr...14..339X|url=h ...2 KB (266 words) - 22:57, 17 February 2022
- ...bremsstrahlung]]. It can also be applied in the context of [[gravitational radiation]], and more recently to other field theories by [[Carl Friedrich von Weizsä ...[[magnetic field]] may be added in order to turn <math> E_1 </math> into a radiation pulse travelling along <math> \overrightarrow{e_2} </math>, denoted <math> ...5 KB (708 words) - 05:59, 21 January 2024
- ...n rule''' is a way to estimate a [[Particle|particle's]] [[Range (particle radiation)|range]] in a medium, serving as a tool in particle detection and [[dosimet ...E2%80%93Kleeman%20rule%20R,approximation%20(CSDA)%20is%20assumed. |journal=Radiation Physics and Chemistry |volume=76 |issue=7 |pages=1089–1107 |doi=10.1016/j.r ...1 KB (177 words) - 09:49, 2 March 2025
- ...f surfaces. The Gebhart factors calculation method is supported in several radiation heat transfer tools, such as TMG <ref>{{cite web |title=Radiation ...4 KB (719 words) - 06:54, 29 September 2019
- ...url=http://projecteuclid.org/euclid.cmp/1103899181 }}</ref> However, this radiation is scattered by the geometry of the black hole itself. Stated more intuitiv where k is the [[Boltzmann constant]] and T is the [[Hawking radiation|Hawking temperature]] of the black hole. The constant in the denominator is ...3 KB (397 words) - 18:47, 29 July 2023
- |title=On the radiation principle ...lated to the [[limiting absorption principle]] (1905) and the [[Sommerfeld radiation condition]] (1912). ...2 KB (340 words) - 09:33, 18 November 2024
- The "radiation effect" results from [[Heat transfer#Radiation|radiation heat exchange]] between human bodies and surrounding surfaces, such as wall We can observe and compare the rate of radiation heat transfer between a person and the surrounding surfaces if we first mak ...4 KB (640 words) - 06:44, 4 March 2024
- {{short description|Temperature above which all solids glow due to black-body radiation}} ...which almost all solid materials visibly glow as a result of [[black-body radiation]]. It was established at {{convert|798|K|°C °F}} by [[John William Draper]] ...3 KB (436 words) - 22:08, 23 December 2024
- ...the ''xyz''-domain and the angular variables that specify the direction of radiation. The methods were developed by [[Subrahmanyan Chandrasekhar]] when he was w In the case of time-independent monochromatic radiation in an elastically scattering medium, the RTE is<ref name=Modest /> ...5 KB (706 words) - 03:26, 24 March 2024
- ...surface to another is the equal to the difference of incoming and outgoing radiation from the first surface. In general, the heat transfer between surfaces is g ...not depend upon the media. Because media neither absorb, emit, nor scatter radiation. ...6 KB (1,008 words) - 15:47, 4 October 2024
- {{short description|Quantity used to assess X radiation risk}} ...n |first1=Patricia K |last2=Wu |first2=Joseph C |date=February 2011 |title=Radiation exposure from imaging tests: is there an increased cancer risk? |journal=Ex ...5 KB (754 words) - 13:20, 22 January 2025
- ...e phase transition''' is phase transition between [[AdS black hole]]s with radiation and thermal AdS. ...although [[AdS black hole]]s can be in stable [[thermal equilibrium]] with radiation, they are not the preferred state below a certain critical temperature <mat ...2 KB (248 words) - 06:28, 15 April 2024
- The '''radiation law''' is way of modeling human mobility ([[geographic mobility]], [[human ==The radiation model<ref name=simini/>== ...7 KB (1,102 words) - 09:09, 24 November 2024
- ...noise temperature|antenna temperature]]. It is not to be confused with [[radiation efficiency]] or [[Illumination efficiency#Relationship to antenna efficienc ...finitions is that "maximum" directivity refers to the direction of maximum radiation intensity, i.e., the main lobe. Therefore, illumination efficiency is not ...5 KB (713 words) - 20:27, 5 October 2023